RFR: 8361890: Aarch64: Removal of redundant dmb from C1 AtomicLong methods

[Andrew Haley]

On Mon, 21 Jul 2025 05:48:25 GMT, Marc Chevalier <mchevalier at openjdk.org> wrote:

> It took a bit, but I'm back! I've run tier 1..3 and some internal testing, and it's passing everything.

The right test for this is jcstress, but even then results are only valid for a single implementation.

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PR Comment: https://git.openjdk.org/jdk/pull/26245#issuecomment-3095815004